Disks

This is a efficient representation of circles using
PostScript's arc or SVG's circle in the generated
output. However, stroked-circles do not draw well after
non-uniform scaling - the pen width is scaled as well as
the shape.

For stroked circles that can be adequately scaled, use
dcCircle instead.

The fill or stroke properties for the respective DrawStyle are
taken from the implicit DrawingContext.

Create a stroked ellipse LocGraphic - the implicit point is
the center.

This is a efficient representation of circles using
PostScript's arc or SVG's ellipse in the generated
output. However, stroked ellipses do not draw well after
non-uniform scaling - the pen width is scaled as well as
the shape.

For stroked ellipses that can be adequately scaled, use
strokedEllipse instead.

The line properties (colour, pen thickness, etc.) are taken
from the implicit DrawingContext.